Voltage clamp experiment

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A sea urchin egg is used in a voltage clamp experiment; that is, the value of the transmembrane voltage is set by the experimenter, not by the properties of the membrane. The transmembrane voltage is held at +10 mV for one minute. At the end of that time

A. the voltage-gated calcium channels are all open.

B. the voltage-gated calcium channels are all inactivated.

C. the voltage-gated calcium channels have recovered from inactivation.

D. the voltage-gated calcium channels are going through cycles of opening and inactivation as the cell generates repetitive action potentials.

E. any of answer A though D above could occur, depending on the density of potassium channels.

Reference no: EM13251735

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